West Lake Pond Culture Technology

The brazilian tapir, also known as the South American salmon, is a new species of freshwater culture that was introduced in Brazil in 1996 and successfully breeding in 1998. It has strong adaptability, fast growth, wide appetite, strong disease resistance, easy catching, delicate meat, and high economic value. It is suitable for promotion in southern China. The breeding of ponds in the Brazilian seabass is mainly cultivated and supplemented with flowers and white leeks. The yield is high and the results are good. I. Pond conditions Brazilian quails have low requirements for pond culture conditions. Generally, ponds or small ponds and ditches for rearing four home fishes can be cultured. The area ranges from a few to several acres, and the maximum is less than 10 acres. The water depth requires 1.2 to 1.8 meters. Second, the stocking stocking 1 clear pond fertilizer water: seedlings in the first 5 to 7 days before the pond must be clear pond disinfection, remove wild fish, and apply enough base fertilizer to reproduce natural food, so that the fish pond after the rich food. 2) Stocking density: Brazil 鲷 summer flower species stocked 1200 to 1500 per acre, while stocking 100 species of white fish. After 4 to 5 months of feeding, Brazil can weigh up to 350 to 500 grams per tail. 3? Disinfection of fingerlings: The stocking time of Brazilian cockroaches is generally at the beginning of May, and the temperature of the water can be maintained at about 15°C to release seedlings. Fish species should be sterilized by drug dipping prior to stocking. Malachite green can be used at 10 mg/l, dipping for 20 to 30 minutes, or potassium permanganate 10 mg/l for 30 minutes. Third, the bait and feeding 1? Bait: Brazilian bran is a plant-based omnivorous fish, and very bulimia. Under artificial rearing conditions, the feed source is very wide and can be fed rice bran, bean cake, bran, bean dregs, peanut cake, sugar cane, distiller's grains, and a small amount of fish meal, silkworm meal and so on. In the pond where the main bran is bred, it is best to feed the full-grain feed of alfalfa and cod for better growth. 2. Feeding: According to the size of the fish body according to the size of the fish fed in different proportions, the general juvenile fish feeding the amount of 8% to 10% of the body weight, fish species from 5% to 7%, the adult stage of 3% ~5%. Feed twice a day, that is, 40% of the feed for the whole day at 8 a.m. and 60% for a feed at 4 p.m. Feeding should be regular, fixed-point, qualitative, quantitative. Fourth, daily management of daily work should be dedicated management, daily observation of fish eating, activities and water quality, found that problems should be dealt with in a timely manner. 1 water quality regulation: pool water to oil green, dark brown, about 30 cm transparency is appropriate, if the pool water is too thick, yellow, white, black, etc., should be replaced with new water in time to adjust the water quality. In addition, once every 20 days or so, the whole pool is splashed with quicklime to prevent disease and regulate water quality. 2?Tour Pond Observation: It is required to survey the pond 3 times a day. In the early morning, the patrol pond mainly observes the activities of the fish and whether there are floating heads. In the afternoon, the patrol pond can check the activities of the fish and the eating and drinking conditions. At dusk, the patrol pond mainly checks whether there is leftover feed and whether there is any floating head omens. When the seasonal weather suddenly changes during the cool season, the fishes are prone to floating heads.

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